Additional file 1: Table S1. of Arsenic exposure is associated with pediatric pneumonia in rural Bangladesh: a case control study

Case characteristics by presence of convalescent urine sample. (DOC 91 kb

TPTest results in different study groups.

*<p>>10 ELISA unit was considered a positive TPTest (see text).</p

Clinical characteristics of study participants.

a<p>Significantly different (p<0.05) when compared blood culture confirmed bacteremia.</p

Comparison of TPTest results using various techniques.

<p>(<b>A</b>) The TPTest was carried out using leukocytes recovered by various techniques: density gradient centrifugation, erythrocyte lysis buffer, and buffy coat separation. The Mann-Whitney U test was used to compare the responses of different blood cell separation methods. RBC, red blood cell. (<b>B</b>) Comparison of TPTest results using peripheral blood mononuclear cells incubated at 37°C in the presence or absence of supplemental CO₂. >10 ELISA units was considered a positive TPTest (see text).</p

Sensitivity, specificity (with 95% confidence intervals in parenthesis) of TPTest for diagnosing enteric fever.

a<p>Calculated using a two by two table.</p

Effect on TPTest results of different incubation periods of cells.

<p>The TPTest was done using lymphocyte supernatants after 24 and 48 hours incubation of peripheral blood mononuclear cells (PBMCs) at 37°C with supplemental CO₂. >10 ELISA units was considered a positive TPTest.</p